Python Combing Two Commands Post: 302948553

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Top Forums Shell Programming and Scripting Python Combing Two Commands Post 302948553 by wisecracker on Tuesday 30th of June 2015 11:22:57 AM

06-30-2015

Registered User

One liner Python code is not easy:-
OSX 10.7.5, running python 3.4 inside a default bash terminal.
This is why I have switched to shell scripting...

Code:

Last login: Tue Jun 30 15:55:49 on ttys000
AMIGA:barrywalker~> python3.4
Python 3.4.1 (v3.4.1:c0e311e010fc, May 18 2014, 00:54:21) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> x=0
>>> while True:
...         print(x)
... 
0
0
0
0
.
.
0
0
^C0
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
KeyboardInterrupt
>>> x=0; while True: print(x)
  File "<stdin>", line 1
    x=0; while True: print(x)
             ^
SyntaxError: invalid syntax
>>> _

Notice the second attempt above as a 1 liner...
Yeah I know the assignment is not a statement, but neither are they in bash, but this is easy in the shell...
Miss out the assignment and put it on a separate line and it will run...

Code:

Last login: Tue Jun 30 15:55:49 on ttys000
AMIGA:barrywalker~> python3.4
Python 3.4.1 (v3.4.1:c0e311e010fc, May 18 2014, 00:54:21) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> x=0
>>> while True: print(x)
... 
0
0
0
0
.
.
0
0
^C0
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
KeyboardInterrupt
>>> _

wisecracker

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LEARN ABOUT DEBIAN

lp-shell

lp-shell(1)						      General Commands Manual						       lp-shell(1)

NAME

       lp-shell - Open an interactive launchpadlib shell.

SYNOPSIS

       lp-shell [-a] [-cPROGRAM] [--python] [--ipython] [service] [LP API version]

DESCRIPTION

       lp-shell opens an interactive Python shell with a launchpadlib.Launchpad object "lp" which is ready for use.

       It  authenticates against Launchpad with the consumer name "udt-lp-shell". When using lp-shell with the -a option it will use the anonymous
       login from launchpadlib.Launchpad.

       By default lp-shell connects to the "production" Launchpad service using the "1.0" LP API version.

       If you want to connect to another Launchpad service, call lp-shell with the service name as the second argument. lp-shell supports all ser-
       vices known by launchpadlib Python module.  Currently known are (list can be incomplete or outdated): "production", "staging", "dogfood".

       A  different  LP  API version can be selected by passing the API version to use as the third argument. Current supported are: "beta", "1.0"
       and "devel".

OPTIONS

       -a     Login anonymously into Launchpad.

       -c PROGRAM
	      Don't enter a shell but only run the specified Python program and exit.

       --ipython
	      Use an ipython shell if available (default).

       --python
	      Use a regular python shell.

AUTHORS

       lp-shell was written by Martin Pitt <martin.pitt@ubuntu.com>.

       It is released under the terms of the GNU General Public License, version 2 or (at your option) any later version.

lptools 							   27 March 2010						       lp-shell(1)